Method for Driving Display Device

1. A display device comprising: a circuit including a transistor; a first conductive layer including a first opening; a second conductive layer including a second opening; a third conductive layer including a third opening; a fourth conductive layer including a fourth opening; a fifth conductive layer including a fifth opening; a sixth conductive layer including a sixth opening; and a seventh conductive layer, wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction, wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction, wherein the seventh conductive layer is electrically connected to the first conductive layer, wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening, and wherein the seventh conductive layer is electrically connected to a scan line through the transistor.

2. The display device according to claim 1 , wherein the circuit is a flip flop.

3. The display device according to claim 1 , wherein the transistor includes an oxide semiconductor layer in a channel portion of the transistor.

4. The display device according to claim 1 , wherein the display device is incorporated in one selected from the group consisting of a computer, an image reproducing device, a goggle-type display, a game machine, a projector, a television, a camera, and a phone.

5. A display device comprising: a circuit including a transistor; a first conductive layer including a first opening; a second conductive layer including a second opening; a third conductive layer including a third opening; a fourth conductive layer including a fourth opening; a fifth conductive layer including a fifth opening; a sixth conductive layer including a sixth opening; and a seventh conductive layer, wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction, wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction, wherein the seventh conductive layer is electrically connected to the first conductive layer, wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening, wherein each width of the first opening, the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening is larger than a width of the seventh conductive layer, and wherein the seventh conductive layer is electrically connected to a scan line through the transistor.

6. The display device according to claim 5 , wherein the circuit is a flip flop.

7. The display device according to claim 5 , wherein the transistor includes an oxide semiconductor layer in a channel portion of the transistor.

8. The display device according to claim 5 , wherein the display device is incorporated in one selected from the group consisting of a computer, an image reproducing device, a goggle-type display, a game machine, a projector, a television, a camera, and a phone.

9. A display device comprising: a circuit including a transistor; a first conductive layer including a first opening; a second conductive layer including a second opening; a third conductive layer including a third opening; a fourth conductive layer including a fourth opening; a fifth conductive layer including a fifth opening; a sixth conductive layer including a sixth opening; and a seventh conductive layer, wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction, wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction, wherein the seventh conductive layer is electrically connected to the first conductive layer through a contact, wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening, and wherein the seventh conductive layer is electrically connected to a scan line through the transistor.

10. The display device according to claim 9 , wherein the circuit is a flip flop.

11. The display device according to claim 9 , wherein the transistor includes an oxide semiconductor layer in a channel portion of the transistor.

12. The display device according to claim 9 , wherein the display device is incorporated in one selected from the group consisting of a computer, an image reproducing device, a goggle-type display, a game machine, a projector, a television, a camera, and a phone.

13. The display device according to claim 9 , wherein the seventh conductive layer includes a region overlapping the first conductive layer.

14. The display device according to claim 9 , wherein the first conductive layer is next to the second conductive layer in a plan view.